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Finding the Fourth Proportional to 6,229.82, 8,597.16 and 3,991.70

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Solution

The fourth proportional to 6,229.82, 8,597.16 and 3,991.70 is: 5,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,229.82 : 8,597.16 = 3,991.70 : x
  2. Step 2: Convert to fraction form
    6,229.82/8,597.16 = 3,991.70/x
  3. Step 3: Cross multiply
    6,229.82x = 8,597.16 × 3,991.70
  4. Step 4: Simplify right side
    6,229.82x = 34,317,283.57
  5. Step 5: Solve for x
    x = 34,317,283.57/6,229.82
  6. Step 6: Final answer
    x = 5,508.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.